Cool, y'all make nice looking tanks...look forward to it. Personally, I don't care about seams at all.We made a tank for the aircooled bikes with fuel pump integration and we will make a tank for the new water cooled bikes too.
We stamped out the stock type tunnel on the aircooled bikes which meant keeping the seem - if its really a problem perhaps on the new line we could look at a different method. Its actually a fairly smart way of making the tank nice and strong.
TMSG -The tank seam is an easy fix. Just remove the seat and blank out the seam flange with 1/2" matte black automotive striping tape. This is very nearly invisible. You'll be surprised at what a neat job you can do.